Mitt Romney, January 28, 2012:

In my state of Massachusetts, you could register as an independent and go vote in which—either primary happens to be very interesting. And any chance I got to vote against Bill Clinton or Ted Kennedy, I took.

Mitt Romney, today:

It’s outrageous to see Rick Santorum team up with the Obama people and go out after union labor in Detroit and try to get them to vote against me. […] Look, we don’t want Democrats deciding who our nominee is going to be. […] I just think it’s outrageous and disgusting. […] This is reminiscent of the dirty tricks of the past, and it’s got to end, and I think Rick Santorum has a lot of explaining to do.

Mitt Romney, February 18, 2007:

When there was no real contest in the Republican primary, I’d vote in the Democrat [sic] primary, vote for the person who I thought would be the weakest opponent for a Republican. […] I’d go in their primary, just like a lot of other folks, and voted against the person who I thought was the strongest Democrat. […] So, yeah, as an independent, I’ll go in and play in their primary, but I’m a Republican, and have been through my life. […] But a registered independent, so I could vote in either primary.

I’ve mentioned this before but it has become crystal clear that Romney thinks “politics” is an excuse for gross hypocrisy.

__
Daily Kos: Video: Mitt Romney denounces Operation Hilarity one month after endorsing it
http://www.dailykos.com/story/2012/02/28/1069046/-Video-Mitt-Romney-denounces-Operation-Hilarity-one-month-after-endorsing-it?fark

UPDATE: Just wanted to point out that sign in the video (around :17)…”Romney, Great for ’68″….which is fine and dandy.  But when applied to Mitt…in the 21st century?  Not so much.